Buggy code:
public class JPADependencyProcessor implements DeploymentUnitProcessor { private static final ModuleIdentifier JAVAX_PERSISTENCE_API_ID = ModuleIdentifier . create ( "javax.persistence.api" ) ; private static final ModuleIdentifier JAVAEE_API_ID = ModuleIdentifier . create ( "javaee.api" ) ; private static final ModuleIdentifier JBOSS_AS_JPA_ID = ModuleIdentifier . create ( "org.jboss.as.jpa" ) ; private static final ModuleIdentifier JBOSS_AS_JPA_SPI_ID = ModuleIdentifier . create ( "org.jboss.as.jpa.spi" ) ; private static final ModuleIdentifier JAVASSIST_ID = ModuleIdentifier . create ( "org.javassist" ) ; private static final ModuleIdentifier HIBERNATE_3_PROVIDER = ModuleIdentifier . create ( "org.jboss.as.jpa.hibernate" , "3" ) ; private static final String HIBERNATE3_PROVIDER_ADAPTOR = "org.jboss.as.jpa.hibernate3.HibernatePersistenceProviderAdaptor" ; private static final ModuleIdentifier HIBERNATE_ENVERS_ID = ModuleIdentifier . create ( "org.hibernate.envers" ) ; private static final ModuleIdentifier JBOSS_AS_NAMING_ID = ModuleIdentifier . create ( "org.jboss.as.naming" ) ; private static final ModuleIdentifier JBOSS_JANDEX_ID = ModuleIdentifier . create ( "org.jboss.jandex" ) ; public void deploy ( DeploymentPhaseContext phaseContext ) throws DeploymentUnitProcessingException { } private void addDependency ( ModuleSpecification moduleSpecification , ModuleLoader moduleLoader , ModuleIdentifier moduleIdentifier ) { } @ Override public void undeploy ( DeploymentUnit context ) { } private void addPersistenceProviderModuleDependencies ( DeploymentPhaseContext phaseContext , ModuleSpecification moduleSpecification , ModuleLoader moduleLoader ) throws DeploymentUnitProcessingException { final DeploymentUnit deploymentUnit = phaseContext . getDeploymentUnit ( ) ; int defaultProviderCount = 0 ; Set < String > moduleDependencies = new HashSet < String > ( ) ; for ( ResourceRoot resourceRoot : DeploymentUtils . allResourceRoots ( deploymentUnit ) ) { PersistenceUnitMetadataHolder holder = resourceRoot . getAttachment ( PERSISTENCE_UNITS ) ; defaultProviderCount += loadPersistenceUnits ( moduleLoader , deploymentUnit , moduleDependencies , holder ) ; } if ( defaultProviderCount > 0 ) { moduleDependencies . add ( PROVIDER_MODULE_DEFAULT ) ; <START_BUG> JpaLogger . ROOT_LOGGER . debugf ( "added<seq2seq4repair_space>(default<seq2seq4repair_space>provider)<seq2seq4repair_space>%s<seq2seq4repair_space>dependency<seq2seq4repair_space>to<seq2seq4repair_space>application<seq2seq4repair_space>deployment<seq2seq4repair_space>(since<seq2seq4repair_space>%s<seq2seq4repair_space>PU(s)<seq2seq4repair_space>didn't<seq2seq4repair_space>specify<seq2seq4repair_space>%d" , PROVIDER_MODULE_DEFAULT , defaultProviderCount , ( ( Configuration . PROVIDER_MODULE ) + ")" ) ) ; <END_BUG> addDependency ( moduleSpecification , moduleLoader , JPADependencyProcessor . HIBERNATE_ENVERS_ID ) ; } for ( String dependency : moduleDependencies ) { addDependency ( moduleSpecification , moduleLoader , ModuleIdentifier . fromString ( dependency ) ) ; JpaLogger . ROOT_LOGGER . debugf ( "added<seq2seq4repair_space>%s<seq2seq4repair_space>dependency<seq2seq4repair_space>to<seq2seq4repair_space>application<seq2seq4repair_space>deployment" , dependency ) ; } } private int loadPersistenceUnits ( final ModuleLoader moduleLoader , final DeploymentUnit deploymentUnit , final Set < String > moduleDependencies , final PersistenceUnitMetadataHolder holder ) throws DeploymentUnitProcessingException { } private void addHibernate3AdaptorToDeployment ( final ModuleLoader moduleLoader , final DeploymentUnit deploymentUnit ) { } }

Fix:
JpaLogger . ROOT_LOGGER . debugf ( "added<seq2seq4repair_space>(default<seq2seq4repair_space>provider)<seq2seq4repair_space>%s<seq2seq4repair_space>dependency<seq2seq4repair_space>to<seq2seq4repair_space>application<seq2seq4repair_space>deployment<seq2seq4repair_space>(since<seq2seq4repair_space>%d<seq2seq4repair_space>PU(s)<seq2seq4repair_space>didn't<seq2seq4repair_space>specify<seq2seq4repair_space>%s" , PROVIDER_MODULE_DEFAULT , defaultProviderCount , ( ( Configuration . PROVIDER_MODULE ) + ")" ) ) ;